I'm not saying your drawing style is bad, but it's so simple, which I love. How could it take a lot of time? I mean, my comics take me 2-5 hours in total to draw. Yours looks like it could take around an hour if you don't mess around.

Getting a comic idea isn't difficult.
>Think of something random
>Ask 1 or 2 people what they think
>Draw it
>Show 3-5 people a preview of it
>Make sure you are somewhat close and the people are trustworthy
>Post it
>???
>Profit